KRC0571

Common Causes

• C function call omits mandatory parameters that have no default values in the function signature
• KRL code passes empty variable or uninitialized parameter to C function instead of valid data
• Function prototype definition in header file differs from actual parameters provided in the KRL call statement
• Incorrect number of parameters passed to C function due to missing or extra comma separators
• KRL variable used as parameter has not been properly initialized before the C function call

Troubleshooting Steps

1. 1Locate the C function declaration in the KUKA system library or external header file to identify all required parameters
2. 2Compare the number and types of parameters in the function call against the formal parameter list in the function definition
3. 3Initialize all variables with explicit values before passing them as parameters to the predefined C function
4. 4Verify each parameter in the function call statement is separated by commas and contains a non-default value
5. 5Add explicit parameter values and remove any empty or placeholder arguments from the function invocation
6. 6Compile the program with the KRC4 compiler in WorkVisual to generate detailed error messages identifying missing or invalid parameters